Re: [Boost-users] Boost thread questions

From: Delfin Rojas (drojas_at_[hidden])
Date: 2006-03-01 13:40:09

> Calderon Hector wrote:
> 
> 1.- I don't see how to lock a file (fstream) for 
> reading/writing. Do I have to use OS functions?

As far as I know there is no "lockable fstream" class in boost. You should
be able to implement it yourself using a mutex. In other words, you can use
the fstream as a shared resource and lock the mutex before each read and
write. You may want to look into the iostreams library and create a
thread_safe_iostream.

> 2.- How do I set a thread to be low priority? Do I have to go 
> to the OS again?

>From old postings I remember the objection to this functionality was
cross-platform support. There doesn't seem to be a consistent way to set
thread priority across all the OSes supported by boost.thread. However this
is only my recollection.

-delfin